@ravenred55-phttps://www.cablewholesale.com/products/network-phone/telephone-cables/product-8102-66207.php These are where I sourced my cables, yeah I've got a whole box of 4p4c wires that I accidentally ordered lol. Gotta find a use for them >_>You can also switch off the WiFi by switching it into bluetooth mode via the connection settings or by sending 'b' (BLE) or 'B' (Bluetooth Serial) to the device via serial. The latest update has Bluetooth Serial re-enabled which lets you still stream data wirelessly to the chrome extension (or any serial compatible software) after you pair with it, say if you used a battery. But you'll need to switch WiFi back on for device updates, though that's it really. So the WiFi power setting on my HEG is 13dBm which translates to 20mW, it can go much lower but I found that I ran into transaction speed issues. It could be that the power setting and the actual output are inconsistent but I don't have a way to measure that right now, and these devices are rated safe for use across EU and USA (though I know the regulations are a bit lax).
So what I know from my cell phone radiation studies is those things can have up to 2 watts of radiative power emitting from them legally, and that's was with the same relative frequency range as WiFi, 2.4GHz in our case. We're a few orders of magnitude below that and I did take some precaution with basic shielding, so I highly doubt there's cause for concern. From what I've read, in rat studies they exposed them to several watts of 4G radiation for weeks on end and did see some concerning results, but that was extended direct exposure. The OSHA standard, however, is only 10mW/cm^2 but that was ruled unenforceable for obvious reasons (everything we use is higher power than that). I did my homework, promise. Edit: fixed link
I've tried a couple different cords I had laying around and neither of them were able to make the red light go on at all. It's a standard cord. The ends look just like the ones on the short cord that came with the unit.
Here is another data point. I discussed with Josh before release, that less wifi emf is better. So he adjusted the ESP32 transmitter radio output to the bare minimum that would travel 10 to 20 feet or so. So much much less than typical wifi power output from a home or business wifi router.
@wjcroft Yes thanks for this note, it's set to be less than 20mW output, which is less than half of even my LED intensity, so should be OK. Average home routers are 100mW, and we're talking exponential scaling here so it's a massive difference. The board still gets pretty warm but it should not cause any issues, as well as the copper plated hub board absorbing any direct EMFs.
Yes any 6p6c reversed cord will do. Make sure it's reversed spec, you'll know its not the right cord if the Red LED is stuck on. I got usable signal on a 10ft cord so you should be fine on anything you'd reasonably want to use. More cord means more noise in general but you ought to be fine as long as it's not moving around too much to generate static or something like that.
You can join two cables (such as the previous link 3 ft) with these couplers. https://www.amazon.com/Monoprice-Straight-Inline-Coupler-107278/dp/B004C4XO6M . Note, previous link had longer lengths, but are out of stock at the moment. If you find an in stock supplier of 4, 5, 6 ft lengths, post here.
This is the type you want: https://www.amazon.com/Telephone-Cable-Voice-Modular-Black/dp/B01LY6FY6L/ Must have 6 conductors, in reverse wiring. Some plugs that look the 'same' only have 4 wires not 6. Or may be wired in 'straight' vs reverse.
I've tried a couple different cords I had laying around and neither of them were able to make the red light go on at all. It's a standard cord. The ends look just like the ones on the short cord that came with the unit.
George, I had the same concern, given the EMFs from the wifi. And we know the Toomim HEG had a longer cord connecting headband to the interface box.
The 'reversed' cords have the springy release tab facing the same flat side of the cable, on BOTH ends of the cable. Just as the one in the kit.
Hey George,
Yes any 6p6c reversed cord will do. Make sure it's reversed spec, you'll know its not the right cord if the Red LED is stuck on. I got usable signal on a 10ft cord so you should be fine on anything you'd reasonably want to use. More cord means more noise in general but you ought to be fine as long as it's not moving around too much to generate static or something like that.